Jesse davis



@uiten gratte gnent @fitta r APPARATUS FOR OILING PROPELLBR-GRANKS.

@te Srlpbule nfrmi tu in tlgist trtttrs atmt mit mating niet nf tip samt.

'lO AIiL WHOM IT MAY. CONCERN:

Be it known that I, JESSE DAVIS, of the city and county of New York, have invented a new and useful improvement in Apparatus for Oiling Propeller-Cranks; and I do hereby declare that the following is a full, clear, and exact description thereof, which'will enable others skilled in the art te make and use the same, reference beinghad to the accompanying drawing, forming part of this specification.

Figure 1 is a sectional `elevation of a propeller-crank and the ailing-apparatus connected with it, in the line fr x, iig. 2.

Figure 2 is a front elevation of the same.

Similar letters of reference indicate like parts.

The oiling of propeller-cranks and other similar working parts of machinery in steamships is commonly attended with much diiculty and a great waste of oil, as it has to be done while the machinery is in motion and the journal is in an inaccessible situation. The ordinary method of oiling journals in such positions is for the engineer to watch his opportunity as the crank comes around lto a favorable point, and then squirt the oil from a. can upon thejournal, a large partof which is usually spilled and wasted. The success of the operation depends onthe dexterity of the oil-man, and it oftenA happens that propelier-cr'ank journals are heated for want of skill and attention on the part of the engineer. This invention is designed to obviate that diliculty, and furnish the means of oilng propeller-cranks with regularity and certainty, and no waste of oil. The apparatus is selfoperative, and very simple and inexpensive.

A represents an ordinary gallows-frame for supporting the machinery of a steamboat; B, the cross-head,

4working in `the slides a a; C, the shaft turned by the double crank D, and connected with the cross-head by the pitman E. On the upper end of the pitman E is placed a metal-box, b, having n. cup or dish-sl1aped cover, which is perforated with small holes. From the bottom of the vessel I: extends a pipe, c c, to the lower end of the pitman, where it debouches upon the crank-journal. On the top of the frame A is fixed a feed-oil can or foun tain, rl, through the bottom of which passes a pipe, e, up into it about two-thirds of its height, as shown in fig. I. The pipe e is made bell-mouthed at the lower end, to hold a mop or sponge, connected with a string of cotton threads-or lamp-wick, whichis run up through the pipe, and hangs over the upper end in oil-can d, lying loosely on the bottom. The pipe e is made permanent in position, of such length that the mop-sponge in the lower end shall press upon the cover of the box b every time the crosslhead B rises to its highest point in the slid-esa a. The' oil-can ol being charged with oil, it is drawninto the cotton wick in the pipe e, by capillary attraction, and runs down yto the 4sponge or mop at the lower end of the pipe, which is thus kept saturated with oil. When the box b rises with the pitman at each stroke of the piston of the steam engine which propels the vessel, the cover presses against the sponge or mop at the lower end of the pipe e, and receives from it a small quantity of oil, which is thus squeezed out, and passes down through the box b and the pipe c c to the crank D, keeping it constantly and regularly lubricated.

Having described the arrangement and operation of my invention, wil-nt I claim as new, and desire to secure by Letters Patent, is l Arranging the fecd-oil can d, with a cotton wick running through the pipee to a sponge or mop in its lower end, in combination with a perforated receiving-box, 6, und connecting pipe cL substantially as and for thepurpose herein described.

. JESSE DAVIS.

Witnesses:

WM. F. MeNAMAnA, ALEX. F. ROBERTS.. 

